Well this is a really good job, my first game was far from the quality of this one. You should continue to make games, there's a lot of week-end in a whole year :) Your title screen is very good, and even if the core gameplay is basic, the execution is ok ( which is very rare for a first experience )

The graphics are pretty good. The controls seem a little slippery though, and the hitbox on the green-missile thing feels too big. Not too much going on in terms of innovative gameplay, but it's a solid game.